AsyDRabbit
New Member
- Joined
- Aug 30, 2020
- Messages
- 5
Hello all,
Plaintive pommy plea for ... pelp?
In the manual for an inverter charger I read:
When ordering the wire using one cable is always best. However, you can add up smaller cable’s mm
sq to equal the equivalent larger size. For example, if you want 100mm sq using 2x50mm sq would be
ample, likewise with 3x 33mm sq etc.. Do not forget that each cable shall need fusing at half (or a third
etc) of the single cable rating, its not safe to put multiple cables on a single fuse .
How would this be managed?
I'm seeking to connect a 2,000W 12V inverter charger to a parallel pairing of 300aH 12V LiFePo4 batteries.
I've worked out that a 70mm² wire would be required to run into my supply busbar, far bigger than my current largest size of 25mm². Conveniently for price as well as having to resize my earthing and other linked battery cables, based on the quote above I could use the excess of my 25mm² to connect the inverter, but I don't understand how it would be connected into the inverter charger.
Simply three separate fused cables to place onto the unit terminals?
The inverter charger can be found here:
And the batteries here:
https://www.qualitysource.co.uk/col...60ah-continuous-bms-lithium-battery-12v-300ah
I'm open to switching out the inverter charger if someone has a more viable suggestion. I know it's not meant for use with LiFePo4, but I figure with the appropriate specific parameters set for the charging profile it should be fine.
Plaintive pommy plea for ... pelp?
In the manual for an inverter charger I read:
When ordering the wire using one cable is always best. However, you can add up smaller cable’s mm
sq to equal the equivalent larger size. For example, if you want 100mm sq using 2x50mm sq would be
ample, likewise with 3x 33mm sq etc.. Do not forget that each cable shall need fusing at half (or a third
etc) of the single cable rating, its not safe to put multiple cables on a single fuse .
How would this be managed?
I'm seeking to connect a 2,000W 12V inverter charger to a parallel pairing of 300aH 12V LiFePo4 batteries.
I've worked out that a 70mm² wire would be required to run into my supply busbar, far bigger than my current largest size of 25mm². Conveniently for price as well as having to resize my earthing and other linked battery cables, based on the quote above I could use the excess of my 25mm² to connect the inverter, but I don't understand how it would be connected into the inverter charger.
Simply three separate fused cables to place onto the unit terminals?
The inverter charger can be found here:
12V solar panels charging kits for caravans, motorhomes, boats, yachts, marine
12V solar panel solar charging kits for motorhome caravan boat campervan yacht marine off-grid
www.photonicuniverse.com
And the batteries here:
https://www.qualitysource.co.uk/col...60ah-continuous-bms-lithium-battery-12v-300ah
I'm open to switching out the inverter charger if someone has a more viable suggestion. I know it's not meant for use with LiFePo4, but I figure with the appropriate specific parameters set for the charging profile it should be fine.